Colossal magnetoresistant materials: the key role of phase separation

E Dagotto, T Hotta, A Moreo - Physics reports, 2001 - Elsevier
The study of the manganese oxides, widely known as manganites, that exhibit the “colossal”
magnetoresistance effect is among the main areas of research within the area of strongly …

Raman Spectroscopy of nanomaterials: How spectra relate to disorder, particle size and mechanical properties

G Gouadec, P Colomban - Progress in crystal growth and characterization …, 2007 - Elsevier
The purpose of this review is to provide non-specialists with a basic understanding of the
information micro-Raman Spectroscopy (μRS) may yield when this characterization tool is …

Why are there so few magnetic ferroelectrics?

NA Hill - The journal of physical chemistry B, 2000 - ACS Publications
Multiferroic magnetoelectrics are materials that are both ferromagnetic and ferroelectric in
the same phase. As a result, they have a spontaneous magnetization that can be switched …

Structural transitions, octahedral rotations, and electronic properties of A3Ni2O7 rare-earth nickelates under high pressure

B Geisler, JJ Hamlin, GR Stewart, RG Hennig… - npj Quantum …, 2024 - nature.com
Motivated by the recent observation of superconductivity with T c~ 80 K in pressurized
La3Ni2O7, we explore the structural and electronic properties of A 3Ni2O7 bilayer nickelates …

Chalcogenide perovskites–an emerging class of ionic semiconductors

S Perera, H Hui, C Zhao, H Xue, F Sun, C Deng… - Nano Energy, 2016 - Elsevier
We report the synthesis and characterization of a novel class of ionic semiconductor
materials–inorganic chalcogenide perovskites. Several different compounds including …

Magnetic ordering effects in the Raman spectra of

E Granado, A García, JA Sanjurjo, C Rettori, I Torriani… - Physical Review B, 1999 - APS
Temperature-dependent Raman spectra of polycrystalline La 1− x Mn 1− x O 3 samples,
referred to as LaMnO 3+ δ for convenience, were correlated to their structural and magnetic …

Comparative study of optical phonons in the rhombohedrally distorted perovskites and

MV Abrashev, AP Litvinchuk, MN Iliev, RL Meng… - Physical Review B, 1999 - APS
The Raman and infrared phonons of isostructural rhombohedral LaMnO 3 and LaAlO 3 are
studied at room temperature. The experimental spectra are compared with the prediction of …

Phonon Raman scattering of CrO perovskites (, La, Pr, Sm, Gd, Dy, Ho, Yb, Lu)

MC Weber, J Kreisel, PA Thomas, M Newton… - Physical Review B …, 2012 - APS
We report a systematic investigation of orthorhombic perovskite-type R CrO 3 powder
samples by Raman scattering for nine different rare earth R 3+ cations (R= Y, La, Pr, Sm, Gd …

Pressure-Induced Quenching of the Jahn-Teller Distortion and Insulator-to-Metal Transition in

I Loa, P Adler, A Grzechnik, K Syassen, U Schwarz… - Physical review …, 2001 - APS
LaMnO 3 was studied by synchrotron x-ray diffraction, optical spectroscopies, and transport
measurements under pressures up to 40 GPa. The cooperative Jahn-Teller (JT) distortion is …

Raman Spectrum of the Organic–Inorganic Halide Perovskite CH3NH3PbI3 from First Principles and High-Resolution Low-Temperature Raman Measurements

MA Pérez-Osorio, Q Lin, RT Phillips… - The Journal of …, 2018 - ACS Publications
We investigate the Raman spectrum of the low-temperature orthorhombic phase of the
organic–inorganic halide perovskite CH3NH3PbI3, by combining first-principles calculations …